public async void Case5()
{
var origF = SampleFinder.Get("sample_4.6mb");
var oldHash = origF.SHA1ForFile();
var outDir = TempDir.New();
var archives = await SevenZipper1.Compress(origF, outDir, 0.5);
archives.MustHaveFiles(7);
var list = await SevenZipper1.DecompressMultiPart(archives, outDir);
foreach (var part in archives)
{
File.Exists(part).Should().BeFalse("Should delete parts after merge");
}
list.Should().HaveCount(1);
var newF = Path.Combine(outDir, list[0]);
var newHash = newF.SHA1ForFile();
newHash.Should().Be(oldHash, "Hashes should match");
Directory.GetFiles(outDir).Length.Should().Be(2, "Should delete OneBigF");
Directory.Delete(outDir, true);
}
public async Task <string> DownloadAndExtract(List <R1SplitPart> splitParts, string expectedHash)
{
var orderedParts = splitParts.OrderBy(x => x.PartNumber).ToList();
_lastTempDir = CreateTempFolder();
for (int i = 0; i < orderedParts.Count; i++)
{
Status = $"Downloading part {i + 1} of {orderedParts.Count}";
var part = orderedParts[i];
var path = Path.Combine(_lastTempDir, part.FileName);
var byts = await GetPartContentByHash(part.PartHash);
if (byts == null)
{
return(null);
}
File.WriteAllBytes(path, byts);
if (path.SHA1ForFile() != part.PartHash)
{
Warn("Expected PartHash did not match actual hash.");
return(null);
}
part.FullPathOrURL = path;
}
Status = "Merging and decompressing downloaded file ...";
var paths = orderedParts.Select(x => x.FullPathOrURL);
List <string> list = null;
try
{
list = await SevenZipper1.DecompressMultiPart(paths, _lastTempDir);
}
catch (Exception ex)
{
Warn("[Decompress Error] Downloaded file may be corrupted." + L.f + ex.Info());
return(null);
}
if (list == null)
{
Warn("[Decompress Fail] Downloaded file may be corrupted.");
return(null);
}
var exePath = Path.Combine(_lastTempDir, list[0]);
if (exePath.SHA1ForFile() == expectedHash)
{
return(exePath);
}
else
{
Warn("[Hash Mismatch] Downloaded file may be corrupted.");
return(null);
}
}
